Home / 42,227.34-63,372.12-20,040.78

Finding the Fourth Proportional to 42,227.34, 63,372.12 and 20,040.78

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Solution

The fourth proportional to 42,227.34, 63,372.12 and 20,040.78 is: 30,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,227.34 : 63,372.12 = 20,040.78 : x
  2. Step 2: Convert to fraction form
    42,227.34/63,372.12 = 20,040.78/x
  3. Step 3: Cross multiply
    42,227.34x = 63,372.12 × 20,040.78
  4. Step 4: Simplify right side
    42,227.34x = 1,270,026,715.05
  5. Step 5: Solve for x
    x = 1,270,026,715.05/42,227.34
  6. Step 6: Final answer
    x = 30,075.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.